Commands using sudo sorted by votes

Commands using sudo (537)

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Check if TCP port 25 is open
This is sample output - yours may be different.
0

sudo lsof -iTCP:25 -sTCP:LISTEN

pdxdoughnut · 2013-11-12 17:32:34 6
Remove all unused kernels with apt-get
This is sample output - yours may be different.
0

% sudo yum remove streams-$(uname-r)

totalnut151 · 2013-11-21 17:41:19 6
dpkg - undo selection of installed packages for deinstall

If you run dpkg --clear-selections or have otherwise selected installed packages for deinstall, but want to undo it, run this. It will set all installed packages back to installed status so that they won't be removed by commands like "dpkg -Pa"
This is sample output - yours may be different.
0

dpkg -l | grep ^ri | awk '{print $2 " install"}' | sudo dpkg --set-selections

ajmccluskey · 2013-11-23 06:41:18 14
Kill all processes found in grep

Kills all processes with a certain string. This was done to kill all ssh sessions openned by zenoss which look like: usr/bin/ssh /opt/zenoss/bin/zenmodeler
This is sample output - yours may be different.
0

for line in `ps aux | grep <string> | awk '{print $2}'`; do sudo kill $line; done;

mjbrune · 2013-11-24 00:02:16 17
Change user's password
This is sample output - yours may be different.
0

sudo passwd <username>

dsetton · 2014-02-01 19:46:40 6
Berechtigungen nach einer Referenz ?ndern
This is sample output - yours may be different.
0

sudo chmod --reference=Referenz.foo Datei.foo

mischka · 2014-02-11 09:29:48 6
Create a nifty overview of the hardware in your computer

entering this command as root may give more complete results, creating a tmp file, and immediately opening the file might be more useful
This is sample output - yours may be different.
0

sudo lshw -html > /tmp/hardware.html && xdg-open /tmp/hardware.html

Sadi · 2014-03-08 10:40:21 7
Route some ips (or domain names) over VPN

In this example, 192.168.12.50 is the host that should be routed via the VPN and "ppp0" is the name of the VPN network interface (ifconfig shows you the list of network interfaces). Can be a IP or domain name. Show Sample Output
This is sample output - yours may be different.
```
add host 192.168.12.50: gateway ppp0
```
0

sudo /sbin/route add -host 192.168.12.50 -interface ppp0

jifilis · 2014-04-13 00:17:53 7
Create new user with sudo rights with home dir, bash shell
This is sample output - yours may be different.
0

export NEWUSER=newuser; mkdir /home/$NEWUSER; useradd -d /home/$NEWUSER -s /bin/bash -G sudo $NEWUSER; passwd $NEWUSER

vinaut79 · 2014-05-16 10:35:57 8
Synchronize date and time with a server
This is sample output - yours may be different.
0

sudo ntpdate serverip

Mahesh · 2014-05-26 04:49:29 7
Reboot to Windows (UEFI)

Quickly reboot directly to Windows (or any other operating system) without the need to enter BIOS/UEFI or boot loader (if any). It's valid for one boot only, no persistent changes to boot priorities.
This is sample output - yours may be different.
0

sudo efibootmgr --bootnext `efibootmgr | sed -n "s/^Boot$[0-9]\{4\}$\* Windows Boot Manager$/\1/p"` && reboot

moneytoo · 2014-05-31 11:51:52 7
Kill the X Server

There are times when a X Window server hangs. When this happens, you can log in on a terminal and kill the Xorg process (i.e. the X Server). This one line command will do the trick.
This is sample output - yours may be different.
0

sudo kill -9 $( ps -e | grep Xorg | awk '{ print $1 }' )

jeffskinnerbox · 2014-06-01 22:43:32 7
MAMP: "Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)" solution
This is sample output - yours may be different.
0

sudo ln -s /Applications/MAMP/tmp/mysql/mysql.sock /tmp/mysql.sock

99RedBalloons · 2014-07-02 07:24:19 7
Change directories using sudo

Change current working directory with root permissions. Place this snippet in your .bashrc to add a new "sudocd" command: function sudocd { sudo bash -c "cd $1;bash" } Usage: sudocd DIRECTORY Please note that if you will use this command to cd into directories with the permissions allowing only root to be in them, you will have to use sudo as a prefix to every command that changes/does something in that directory (yes, even ls).
This is sample output - yours may be different.
0

sudo bash -c "cd /PATH/TO/THE/DIRECTORY;bash"

Zath · 2014-07-28 20:20:04 35
dpkg: purge all packages matching some name

Recently in Debian Wheezy the dpkg command refuses to work with wildcards, so this is the one-liner alternative.
This is sample output - yours may be different.
0

sudo dpkg -P $(sudo dpkg -l yourPkgName* | awk '$2 ~ /yourPkgName.*/' | awk '$1 ~ /.i/' | awk '{print $2}')

woohoo · 2014-08-02 18:14:02 9
restart session
This is sample output - yours may be different.
0

sudo restart lightdm

sentenza · 2014-08-06 21:23:24 7
dpkg: purge all packages matching some name

Recently in Debian Wheezy the dpkg command refuses to work with wildcards, so this is the one-liner alternative. (alternative to #13614)
This is sample output - yours may be different.
0

sudo dpkg -P $(dpkg -l yourPkgName* | awk '$2 ~ /yourPkgName.*/ && $1 ~ /.i/ {print $2}')

wejn · 2014-08-06 22:40:32 9
Twitter the geek way

Rainbow Stream is a smart and nice Twitter client on terminal. Almost everything you can do with a GUI application can be done, even viewing an image. - Tab-autocomplete, history browsing - Beautiful built-in themes and custom configuration support - Tweet's images directly on your terminal. Show Sample Output
This is sample output - yours may be different.
```
     _ _            _ _____  _____
    | | |          | |  _  ||  _  |
  __| | |___   ____| |\ V /  \ V /
 / _` | __\ \ / / _` |/ _ \  / _ \
| (_| | |_ \ V / (_| | |_| || |_| |
 \__,_|\__| \_/ \__,_\_____/\_____/



Need tips ? Type "h" and hit Enter key!
[@dtvd88]:
```
0

sudo pip install rainbowstream && rainbowstream -iot

DTVD · 2014-08-20 06:45:16 8
Null a file with sudo
This is sample output - yours may be different.
0

sudo tee /path/to/file < /dev/null

Panovski · 2014-10-02 20:08:42 8
Set APM_level for HDD to prevent frequent parking
This is sample output - yours may be different.
0

sudo hdparm -B 200 /dev/sda

13_rom · 2014-10-16 13:01:13 8
mac address change
This is sample output - yours may be different.
0

sudo ifconfig mlan0 down; sudo ifconfig mlan0 hw ether 00:10:10:10:08:88; sudo ifconfig mlan0 up;

lainfinity · 2014-11-03 10:01:41 8
check the status of 'dd' in progress (OS X)

display dd status on OSX (coreutils) every 10 seconds Show Sample Output
This is sample output - yours may be different.
```
664+0 records in
664+0 records out
696254464 bytes (696 MB) copied, 426.767 s, 1.6 MB/s
```
0

watch -n 10 sudo kill -INFO $(pgrep -l '^dd$' | cut -d ' ' -f 1)

nfarrar · 2014-11-23 21:21:08 7
Look for the process bound to a certain port
This is sample output - yours may be different.
0

sudo netstat -tulpn | grep :8080

zluyuer · 2014-12-04 06:11:09 9
Look for the process bound to a certain port

grep : This shows the process running on that specific port.
This is sample output - yours may be different.
0

sudo lsof -i | grep :8080

cptjack · 2014-12-15 10:08:31 8

Show apps that use internet connection at the moment.

Show top apps that use internet, sorted by count connections and grouped by TYPE and Protocol Show Sample Output

sudo lsof -P -i -n | awk '{print $1,$5,$8}' | tail -n +2 | uniq -c | sort -nr

anton_slim · 2014-12-18 05:22:33 9

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Check wireless link quality with dialog box

The variable WIRELESSINTERFACE indicates your wireless interface

Extract tarball from internet without local saving

delay execution of a command that needs lots of memory and CPU time until the resources are available

[ 2000 -ge "$(free -m | awk '/buffers.cache:/ {print $4}')" ] returns true if less than 2000 MB of RAM are available, so adjust this number to your needs. [ $(echo "$(uptime | awk '{print $10}' | sed -e 's/,$//' -e 's/,/./') >= $(grep -c ^processor /proc/cpuinfo)" | bc) -eq 1 ] returns true if the current machine load is at least equal to the number of CPUs. If either of the tests returns true we wait 10 seconds and check again. If both tests return false, i.e. 2GB are available and machine load falls below number of CPUs, we start our command and save it's output in a text file. The ( ( ... ) & ) construct lets the command run in background even if we log out. See http://www.commandlinefu.com/commands/view/3115/ .

Url Encode

It only encodes non-Basic-ASCII chars, as they are the only ones not well readed by UTF-8 and ISO-8859-1 (latin-1). It converts all * C3 X (some latin symbols like ASCII-extended ones) and * C2 X (some punctuation symbols like inverted exclamation) ...UTF-8 double byte symbols to escaped form that every parser understands to form the URLs. I didn't encode spaces and the rest of basic punctuation, but supposedly, space and others are coded as \x20, for example, in UTF-8, latin-1 and Windows-cp1252.... so its read perfectly. Please feel free to correct, the application to which I designe that function works as expected with my assumption. Note: I specify a w=999, I didn't find a flag to put unlimited value. I just suppose very improbable surpass the de-facto 255 (* 3 byte max) = 765 bytes length of URL

Backup a file with a date-time stamp

Appends the input file with the date format YYYY-MM-DD.bak. Also runs silently if you remove the -v on the cp at the end of the function.

repeat any string or char n times without spaces between

(here is character '+' repeated 80 times) Sometimes needed to enhance the title of the script.

change to the previous working directory

Find the package that installed a command

'readlink' equivalent using shell commands, and following all links

This is a equivalent to the GNU ' readlink' tool, but it supports following all the links, even in different directories. An interesting alternative is this one, that gets the path of the destination file $ myreadlink() { [ ! -h "$1" ] && echo "$1" || (local link="$(expr "$(command ls -ld -- "$1")" : '.*-> $.*$$')"; cd $(dirname $1); myreadlink "$link" | sed "s|^$[^/].*$\$|$(dirname $1)/\1|"); }

list block devices

Shows all block devices in a tree with descruptions of what they are.

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Commands using sudo (537)

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